Cs0.32WO3 for preparing heat insulation glass is cesium tungsten bronze nano powder with excellent near-infrared shielding performance (near-infrared absorption performance). It is reported that the grain size, morphology and crystallinity of Cs0.32WO3 powder have a great influence on its near-infrared absorption performance. In order to better compare the crystallinity, some experts use SiC (nano silicon carbide) as a calibration standard to correct the crystallinity of Cs0.32WO3.
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The calibration experiment method is as follows: Cs0.32WO3 powder to be characterized and commercial SiC powder with a purity of 99.9% are mixed in a mass ratio of 1: 2, and then fully ground in an agate mortar, and the mixed powder is quantitatively removed for XRD Characterization. Wherein, by comparing the XRD main diffraction peak (2θ = 27.77 °) of Cs0.32WO3 with the SiC main diffraction peak (2θ= 35.7 °), the change in crystallinity can be more intuitively displayed.
